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Publication numberUS1317654 A
Publication typeGrant
Publication dateSep 30, 1919
Filing dateApr 27, 1917
Publication numberUS 1317654 A, US 1317654A, US-A-1317654, US1317654 A, US1317654A
InventorsWilliam Tuiotbtrll
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Tioh of caufomtia
US 1317654 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)



APPLICATION FILED APR. 27, I917- Patented Sept. 30, 1919.



TRACTOR- RAME consmuc'rron.

To all whom it may concern v Be it known that we, EMIL F. Nonmaos, of Peoria, county of Peoria, State of lllinols, and WILLIAM TURNBULL, of Peoria, county of Peoria, State of Illinois, citizens of the United States, have invented new and useful Improvement in Tractor-Frame Constructions, of which the following is a spoolfication. I

This invention relates to tractor frame construction; and has for its object to provide a strong and rugged frame which will be light, simple and economical.

The construction includes a main frame having its sides made up of composite truss beams, each comprising a sill with a tiebeam disposed above and plates or. Webs eX- tending between and secured thereto, the sills being arranged for support upon a truck mechanism at a point intermediate their ends and .the tie-beams extending downwardly and forwardly from a point above said supporting connections; suitable cross connections being provided between the sills and webs, near the front of the frame, to receive and support the motor and the cross connections being arranged near the rear of the frame between the tie-beams to receive and support the .transmission mechanism.

One form which our invention may assume is exemplified in thefollowing description and illustrated in the accompanying drawings, in which- Figure 1 shows a plan view of the main frame embodying our invention.

Fig. 2 shows a side elevation of the same.

Figs. 3, 4 and 5 show sectional'views taken g n the correspondingly numbered lines'of ig. 2. I

The frame comprises two longitudinal sills 10 of I-beam construction, connected together by cross-bars 11. Upon the sills is a superimposed frame, comprising longitudinally extending tie-beams 12, preferably of angle bar construction, extending from the rear of the main frame to a point near the front thereof, being through a considerable portion of their extent inclined downwardly and forwardly. Between the tie-beams and sills are steel webs or plates 13, riveted to the flange of the angle bar above and connected. to the top of the ill-beam below by angular cleats 14.

Specification of Letters Patent.

Patented Sept. 3d,.1919.

Application filed April 27, 1917. Serial No. 164,977.

The tie-beams 12 are connected together by cross-bars 15, near-their rear ends, and a longitudinally extending bar 16 is centrally arranged upon thevcro'ss-bars and additionally supported and reinforced b a di- 7 a onal brace 17, resting on a crossar 18 disposed between and connected to the upper faces of the sills 10. The cross-bars 15 and the longitudinal bar 16 form supports for the transmission and connected parts of the tractor mechanism.

At the front of the frame are transverse I-beams 19, resting upon the sills and connected to the webs by suitable cleats or angle plates, said transverse-I-beams' forming supports for the motor of the tractor. Near the middle portion of the main frame are vertically spaced cross-bars 20, in the form of angle bars, connected to plates '21, which in turn are riveted .to the webs 13 and to the I-beams-beneath. Diagonally extending space bars 22 arranged in the form of ,a

cross are positioned below the cross-bars 20,

" and connected attheir ends to the web portions of the I-beams. Beneath the I-beam sills, near the middle portions thereof, are

inverted channel bars 23 projecting at the sides to form connections for supporting the ,main frame upon thetractor truck mechanism. Suitable draft connections 24 are provided at the rear of the main frame, and connected to the I-beam sills. Outrigger arms 25, at one or both sides, are connected to the webs 13, being adapted to receive and support a running 'board or shelf.

At the front end of the I-beams 10 is a circle ring 26, secured in placeto receive a turntable ring 27 to which the front wheels are connected.

The superimposed angle bars 12 and web plates 13 stiffen the frame against vertical bending movement and form, in connection with the sill 10, a composite truss beam offering great strength and rigidity. The cross-beams 19, which support the motor, it will be noted, rest directly upon the sills 10, whereas the supports 15 and 16 for the transmission mechanism are connected to the tie-beams 12. This arrangement not only lends itself readily to the required variation in the plane of the transmission mechanism and motor, thereby eliminating bed plates and spacer blocks, but also relieves the sills 10 of a considera-be portion of the bending strains that would be otherwise present. The sills 10 are adequately supported and reinforced at their central portions against relative, endwise movement by the diagonal bars 22. The tie bars 12, it will be noted, start to incline downwardly and forwardly from a point overlying the channel supports 23 and, therefore, the'long or forward ends of the beams 10 are stayed against longitudinal bending by what, in effect, constitute angular braces which are effective both under tension or compression.

Various changes in the construction and arrangement of the several parts herein shown and described may be employed without departing from the spirit of our invention as disclosed in the appended claims.

Having thus described our invention, what we claim and desire to secure by Letters Patent is 1. A main frame for tractors having its sides formed of truss beams, each including a sill to support said sides and a superimposed tie-beam, transverse bars at the front resting on the sills to receive and support a motor, transverse bars at the rear connected to the tie-beams to receive and support the transmission mechanism, and transversely extending beams below the sills intermediate the motor and transmission supports for supporting connection with the truck mechanism.

2. A main frame for vehicles having parallel side members, each including a sill,

nameea a web plate supported thereby and, carrying a superimposed tie beam, lateral beams for connecting the forward ends of the side members and forming a motorsupport, transverse bars connecting the tie beams at the rear of the frame for receiving a transmission mechanism and a pair of spaced and parallel cross beams extending across and beneath the sills and overhanging the same for connection with the runninggear.

3. A main frame for tractors, comprising parallel side rails, each consisting of a continuous beam, a web plate secured to the upper face of the beam and a tie beam secured to the upper edge of the web plate, cross frame members rigidly connecting the opposite ends of the sills, cross bars connecting the webs at the forward ends thereof for the support of a motor, cross bars connecting the webs at the rear end thereof for the support of a transmission, and a pair of cross beams extending transversely of, and secured beneath, the side rails and overhanging the same to provide a support for the frame structure upon the vehicle running gear.

In testimony whereof we have hereunto set our hands in the presence of two subscribing witnesses.



Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4168087 *May 30, 1978Sep 18, 1979International Harvester CompanyTapered channel modular main frame
US7156421 *Apr 21, 2005Jan 2, 2007Volvo Trucks North America, Inc.Composite cross member system
U.S. Classification280/794, 280/799
Cooperative ClassificationB62D21/06